EP 2810980 A1 20141210 - OPTICAL MEMBER, METHOD FOR PRODUCING SAME, AND ARTICLE PROVIDED WITH OPTICAL MEMBER
Title (en)
OPTICAL MEMBER, METHOD FOR PRODUCING SAME, AND ARTICLE PROVIDED WITH OPTICAL MEMBER
Title (de)
OPTISCHES ELEMENT, HERSTELLUNGSVERFAHREN DAFÜR UND MIT DEM OPTISCHEN ELEMENT AUSGESTATTETER GEGENSTAND
Title (fr)
ÉLÉMENT OPTIQUE, SON PROCÉDÉ DE FABRICATION ET ARTICLE DOTÉ DE L'ÉLÉMENT OPTIQUE
Publication
Application
Priority
- JP 2012016477 A 20120130
- JP 2013050983 W 20130118
Abstract (en)
To provide an optical member having an excellent transparency and heat resistance and further having favorable light resistance as compared with a molded product made of a conventional ethylene/tetrafluoroethylene copolymer, a process for producing the same, and an article provided with the optical member. An optical member made of a molded product containing a crosslinked product of an ethylene/tetrafluoroethylene copolymer comprising units (A) based on tetrafluoroethylene, units (B) based on ethylene and units (C) based on CH 2 =CH-C n F 2n+1 (wherein n is an integer of from 2 to 10), wherein the molar ratio ((A)/(B)) of the above units (A) to the above units (B) is from 50/50 to 66/34, and the molar ratio ((C)/{(A)+(B)}) of the above units (C) to the sum of the above units (A) and the above units (B) is from 4.0/100 to 10/100.
IPC 8 full level
C08F 214/26 (2006.01); C08J 3/24 (2006.01); G02B 1/04 (2006.01)
CPC (source: EP US)
C08F 214/26 (2013.01 - EP US); C08J 3/28 (2013.01 - EP US); G02B 1/04 (2013.01 - EP US); C08J 2327/18 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
US 2014296367 A1 20141002; US 9194982 B2 20151124; CN 104093772 A 20141008; EP 2810980 A1 20141210; EP 2810980 A4 20150916; EP 2810980 B1 20160713; ES 2594353 T3 20161219; JP 6003905 B2 20161005; JP WO2013114981 A1 20150511; KR 101950055 B1 20190219; KR 20140122227 A 20141017; TW 201335199 A 20130901; TW I592431 B 20170721; WO 2013114981 A1 20130808
DOCDB simple family (application)
US 201414304062 A 20140613; CN 201380007072 A 20130118; EP 13744182 A 20130118; ES 13744182 T 20130118; JP 2013050983 W 20130118; JP 2013556311 A 20130118; KR 20147019495 A 20130118; TW 102102632 A 20130124